Impacts of rapid mass vaccination against SARS-CoV2 in an early variant of concern hotspot

Jörg Paetzold (), Janine Kimpel, Katie Bates, Michael Hummer, Florian Krammer, Dorothee Laer and Hannes Winner
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Jörg Paetzold: University of Salzburg, Department of Economics
Janine Kimpel: Medical University of Innsbruck
Katie Bates: Medical University of Innsbruck
Florian Krammer: Icahn School of Medicine at Mount Sinai
Dorothee Laer: Medical University of Innsbruck

Nature Communications, 2022, vol. 13, issue 1, 1-7

Abstract: Abstract We study the real-life effect of an unprecedented rapid mass vaccination campaign. Following a large outbreak of the Beta variant in the district of Schwaz/Austria, 100,000 doses of BNT162b2 (Pfizer/BioNTech) were procured to mass vaccinate the entire adult population of the district between the 11th and 16th of March 2021. This made the district the first widely inoculated region in Europe. We examine the effect of this campaign on the number of infections, cases of variants of concern, hospital and ICU admissions. We compare Schwaz with (i) a control group of highly similar districts, and (ii) with populations residing in municipalities along the border of Schwaz which were just excluded from the campaign. We find large and significant decreases for all outcomes after the campaign. Our results suggest that rapid mass vaccination is an effective tool to curb the spread of SARS-CoV-2.

Date: 2022
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DOI: 10.1038/s41467-022-28233-8

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